Answer / sivakrishna

by adding capacitive and inductive loads ,we can increase kvah rating

what is soft starter? what is the difference between soft starter and star delta starter?

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I HAVE A INCOMING 100A MCCB TPN 25KA, CABLE LENGHT OF 80M 70MM CABLE SIZE FROM MAIN SUBBOARD TO NEW DB.BASE ON THE FAULT LEVEL SETTING OF 45KA.I WOULD LIKE TO FIND OUT 25KA ENOUGH KA. APPRECIATE IF SOMEBODY CAN ASSIST ME WITH FORMULA FOR THIS. FRM: JEFF

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why electron not flow in open loop,how they know path is open ?

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why the all high voltage transformers are in 11kv , 33kv , 66kv, 132kv like that

2 Answers   Bhel,

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what happens when one of the phases out 0f 3 phases been removed under working condition and no load condition will the machine run if so plz send me why

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What are the protections to be used for Generator?

5 Answers  

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why we use 50 hz frequency in india .. why not 60 hz 

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i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

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HAT IS THE EFFECT OF LOW POWER FACTOR ON THE GENERATING STATION?HOW WILL YOU IMPROVE THE LOW POWER FACTOR?

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What is the source of dependent source ?

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How many speed of dg start motor for engine starting time

1 Answers  

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what is the value of voltage & current lightning during rainy season.

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